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dangina [55]
3 years ago
11

I need help figuring out what h, k, and r are?

Mathematics
1 answer:
Jlenok [28]3 years ago
5 0

Answer:

h = 3

k = -2

r = 2

Step-by-step explanation:

The numbers inside the parentheses are the opposites of the values h and k.

For the radius, we look at the constant on the other side of the equation and square root that. In this case, the square root of 4 is 2.

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Can someone please help me solve this?
aleksklad [387]

Answer:

centre = (-5, -4)

radius = 7.42

Step-by-step explanation:

The general form for center-radius is

(x - h)² + (y - k)²= r²

Center = (h, k)

Radius = r

Rearrange the equation.

(x² + 10x) + (y² + 8y) - 14 = 0

Add 14 on both sides.

(x² + 10x) + (y² + 8y) = 14

(10/2)² = 25

(8/2)² = 16

Add 25 and 16 to both sides.

(x² + 10x + 25) + (y² + 8y + 16) = 14 + 25 + 16

Factor left side of the equation.

(x+5)² + (x+4)² = 55

(55) = (7.416198)²

(x+5)² + (x+4)² = 7.42²

The radius is 7.42.

The centre is at (-5, -4).

8 0
3 years ago
Read 2 more answers
An angle measures 80° more than the measure of a complementary angle. What is the measure of each angle?
Rom4ik [11]

Supplementary angles sum to 180 degree  

Let one angle be x  

Then the other angle is x+80  

Summing the 2 angle gives  

x+x+80=180

2x+80=180

2x=180-80

X=50

Thus the angles are 50 degree and 50+80= 130 degree  


6 0
4 years ago
A jet plane costs an airline $65,500,00. What is the place value of the digit 5 in this number?
Pavel [41]


|Ten Mils| Mils|100 thousands|10 thousands|Thousands|100's|Tens|Units | 
|-----------|------|--------------------|------------------|---------------|-------|---------------|
|     6      |    5 |         5             |          0          |        0        |    0  |        0        |

You can find easily the solution

5 0
3 years ago
If the total amount of people serving as of January is estimated to be 1,400,000 people, how many are in the Air Force?
d1i1m1o1n [39]

Answer:

<em>There are 364,000 people in the Air Force.</em>

Step-by-step explanation:

<u>Percentages</u>

The N% of a number M is calculated by:

\displaystyle \frac{N*M}{100}

For example, 15% of 280 is

\displaystyle \frac{15*280}{100}=42

We know the total amount of people serving as of January is estimated to be 1,400,000 people and that 26% of them are serving in the Air Force.

Compute 26% of 1,400,000:

\displaystyle \frac{26*1,400,000}{100}=364,000

There are 364,000 people in the Air Force.

5 0
3 years ago
What is the value of...<br> 4x - x + 5, when x = 3<br> ???
jasenka [17]

Answer:

The value of 4x-x + 5 when x + 3 is 14

Step-by-step explanation:

4(3)= 12 - 3= 9 + 5= 14

7 0
2 years ago
Read 2 more answers
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